Explain user-centered design principles in a brief memo to Annie
What will be an ideal response?
Good user-centered design depends on eight basic principles, which are:
? Understand the underlying business functions
? Maximize graphical effectiveness
? Profile the system’s users
? Think like a user
? Use prototyping
? Design a comprehensive interface
? Continue the feedback process
? Document the interface design
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Answer the following questions true (T) or false (F)
1. True/False: The first desktop computer, the Altair 8800, was invented in 1955. 2. True/False: A supercomputer can process over 1 billion instructions per second. 3. True/False: Web2.0 is simply an updated version of the World Wide Web.
All of the following help to identify a problem during the troubleshooting process EXCEPT:
A. identify symptoms B. determine if anything has changed C. determine next steps to resolve problem D. question users
Sara is having a tough time finding the cause of a problem on a computer she is troubleshooting. She found a possible problem but is not sure if she is correct. In case she is wrong, Sara does not want to test her theory, because doing so might worsen the problem. ? What would you advise Sara to do?
A. Research the problem on the Internet. B. Test her theory. C. Take a guess about what the problem might be. D. Tell her customer she can’t fix the problem.
Which of the following statements about unary expressions is true?
A. The sizeof operator requires a parenthetical expression as its operand. B. The unary plus operator does not change the value of the expression. C. The unary minus operator subtracts one from the operand value. D. The unary minus operator has a side effect.